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Can someone explain __all__ in Python?
I have been using Python more and more, and I keep seeing the variable __all__ set in different __init__.py files. Can someone explain what this does?
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What is the difference between “JPG” / “JPEG” / “PNG” / “BMP” / “GIF” / “TIFF” Image?
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Yes. They are different file formats (and their file extensions).
Wikipedia entries for each of the formats will give you quite a bit of information:
JPEG (or JPG, for the file extension; Joint Photographic Experts Group)
PNG (Portable Network Graphics)
BMP (B...
Is floating-point math consistent in C#? Can it be?
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Wouldn't casting to double each time after an operation strip away the unwanted bits, yielding consistent results?
– IllidanS4 wants Monica back
Feb 27 '16 at 22:58
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Executing command line programs from within python [duplicate]
...ication that will is going to manipulate (pad, mix, merge etc) sound files and I've found that sox does exactly what I want. Sox is a linux command line program and I'm feeling a little uncomfortable with having the python web app starting new sox processes on my server on a per request basis.
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Clear MySQL query cache without restarting server
...nt the query cache via...
FLUSH QUERY CACHE;
See the Query Cache Status and Maintenance section of the MySQL manual for more information.
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Delete terminal history in Linux [closed]
When you use the up key in a Linux terminal, you can use previous commands again. Great feature. However, I started logging mysql into mysql with the sensitive details in the command.
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When to use inline function and when not to use it?
...anguage rules about multiple definitions. Also, having static data isn't a cast iron reason to avoid inlining a function. The implementation is obliged to allocate a single static object for each function static whether or not the function is declared inline or not. Classes are still extensible if t...
Apache not starting on MAMP Pro
Apache wont start and it throws an error:
2 Answers
2
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What does the Q_OBJECT macro do? Why do all Qt objects need this macro?
... use the signal/slot mechanism. The absence of Q_OBJECT breaks the qobject_cast and introspection. It can lead to some perplexing behavior, so it's a bad idea.
– Unslander Monica
Apr 7 '16 at 20:39
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Code Golf - π day
...as to see how many stars we need to print for this line.
# Bitwise OR "casts" to int; and: 1 | int(2 * x) == 1 + 2 * int(x)
my $stars = 1 | 2 * sqrt($radius**2-$y**2);
$surface += $stars;
# $" = $LIST_SEPARATOR: default is a space,
# Print indentation + stars
# (newline...